Fond Du Lac County, Wisconsin
MI06
8900
50.60
Condition has remained stable; water is not impaired.
Notes
Forest Lake was placed on the impaired waters list due to mercury from atmospheric deposition in 1998, but a 2001 update in fish consumption advisories removed the specific fish consumption advice for this lake. The Mercury listing was removed during the 2020 cycle.
Forest Lake was evaluated for phosphorus and algae in 2014 and aquatic plants in 2024; all were in good condition. This lake is on the Waters Attaining Standards List.Pollutant
Mercury
Listed For
Impairments
NA
Current Use
Listing Status
Water Delisted
Attainable Use
Priority
Delisted 2020
Designated Use
303(d) ID
145
Listing Date
4/1/1998
Impaired Water Notes
This listing was part of a set removed from the impaired waters list due to a change in fish consumption advisory levels in 2001. In 2001 Wisconsin DNR put into effect a statewide fish consumption advisory for mercury due to atmospheric deposition. Most of the lakes removed from the specific fish consumption advisories list in 2001 were not removed from the impaired waters list even though the thresholds had changed. For the 2020 assessment process WDNR requested delisting of 91 waters with residual mercury listings from prior to 2001. This request was approved by US EPA.
Date
9/4/2018